How Extreme Heat Affects the Body

In extreme heat, your body loses water rapidly through sweat, leading to dry mouth, weakness, and confusion.

Normal body temperature (~37°C) can rise dangerously, increasing the risk of heatstroke, a life-threatening condition.

Extreme heat affects the brain, causing poor concentration, confusion, and even fainting.

Your heart pumps faster to cool the body, increasing strain—especially risky for people with heart conditions.

Prolonged sun exposure can cause sunburns, irritation, and heat rashes, damaging the skin barrier.

Loss of electrolytes through sweat can lead to painful muscle cramps, especially during physical activity.

If untreated, heatstroke can cause organ failure, unconsciousness, and even death.

Severe dehydration puts stress on kidneys, increasing the risk of kidney damage or failure.

Hot weather can disrupt sleep cycles, causing restlessness and fatigue the next day.